Fly-frightener



(No Model.)

J. BOSWORTH. FLY FRIGHTENER No.1 447,755. Patented Marl 10, 1891.

JOHN B OSWVORTH, OF BATTLE CREEK, MICHIGAN.

FLY-FRIGHTEN ER.

SPECIFICACI ION forming part of Letters Patent No. 447,7 55, dated March10, 1891.

Application filed August 16, 1890. Serial No. 362,222. (No model.)

To all whom it may concern:

Beitknown that 1, JOHN BoswoR'rH, a citizen of Battle Creek, in thecounty of Calhoun and State of Michigamhave invented certain new anduseful Improvements in Fly-Frighteners; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same.

My invention relates to an improvement in fly-frighteners to be appliedto doors, the object of the invention being to produce an improveddevice to be applied to a screen or other door, and to so construct suchdevice that when the door is opened it will operate to frighten flieswhich may be thereon and prevent them from entering the room.

A further object is to constructa fly-frightener and connect it with adoor in such manner that when the door is opened the device will beturned in one direction, and when the door is closed said device will beturned in theopposite direction, whereby any flies which may be on thedoor will be frightened therefrom and thus prevented from entering theroom.

A further object is to produce a fly-frightener for doors, which shallbe simple in construction, easy of operation, and which shallautomatically and effectually frighten flies from a door.

With these objects in View the invention consists in certain novelfeatures of construe tion and combinations and arrangements of parts, ashereinafter set forth, and pointed out in the claims.

In the accompanying drawings, Figure 1 is a View of a door havingmyimprovement applied thereto. Fig. 2 is a sectional view of a portionof the device.

A represents a screen-door, to the end piece of which two or more blocksa are secured, preferably in proximity to the top and bot tom thereof,said blocks being provided with elongated slots 1) for the reception ofthe straight portion 0 of a wire frame B. This wire frame is preferablymade of rectangular form, comprising the straight portion 0, the spiralor twisted portion 0, and end connection-bars 0 the spiral portion ofthe frame being revolubly connected to the remaining portion thereof.Encircling this spiral c is a nut 0, having a central perforation of aform to receive the spiral c, which nut is secured to the door A, sothat when the frame is moved up and down, as presently explained, thespiral in passing through the nut will be partially-rotated.

Connected to the spiral c at or near its ends is a frame D of wire orother suitable material, and preferably made in two sections, onesection being adapted to normally lie against the middle portion of thedoor and the other section adapted to normally lie against the upperportion of the door. The lower section of the frame D is composed of twohorizontal rods 6? d and two vertical rods 6 e, the rod 0 being extendedupwardly to form one of the upright rods of the upper section of theframe D. One end of the upper smaller portion of the frame D is made bya rod f projecting upwardly from the horizontal rod (1' of the lowerportion of the frame, while the other end of said upper portion is madeby a vertical rod f. At the junctions of the several rods of the frame Dloops g are formed, and also at points between the ends of the verticalrods e e of the lower portion of the frame,'by means of which screeningmaterial of'any suitable kind may be fastened to the frame.

Secured to the door-frame immediately over the frame Bis a block E,having its upper face inclined, so that when the door is closed theblock will enter the frame B and raise it, whereby the spiral 0 will bedrawn through the nut O and the frame thereby made to make ahalf-revolution and frighten away any flies there might be on the door.

In order to cause the device to be lowered when the door is opened, andthus frighten flies away when the door is opened, a spring G is coiledabout the lower portion of the frame 13 and made to bear on the lowerblock a, so that as the upper portion of the frame B rides off theinclined block E it will be-drawn downwardly by the spring G and throughthe medium of of the spiral and nut the frame D will be made to make ahalf-revolution.

If desired, the inclined block E may be lo cated at the bottom of thedoor-frame and the spring G at the top. There may, if preferred, be aroller on the cross-bar c of the frame B,

adapted to run on the inclined block E. .The device may be secured tothe door in proximity to the edge thereof, if desired.

The device constructed as above set forth is very simple, efiective inoperation, and cheap to manufacture and apply to a door.

Slight changes might be made in the details of construction of myinvention without departing from the spirit thereof or limiting itsscope. Hence I do not wish to limit myself to the precise details ofconstruction herein set forth; but,

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is

l. The combination, with a-door, of a revoluble fly-frightener-attachedthereto, and devices for automatically partially revolving saidfly-frightener when the door is opened or closed, substantially as setforth.

2. The combination, with a door, of a frame connected therewith andadapted to slide thereon, a portion of said frame comprising a revolublespiral, a nut on said spiral and secured to the door, and a frameconnected with the spiral and adapted to normally lie against the doorand be moved therefrom by the combined action of the spiral and nut,substantially as set forth.

3. The combination, with a door and doorframe, of a frame connected tothe door and 1 adapted to slide thereon, a portion of said framecomprising a revoluble spiral, a nut on said spiral and secured to thedoor, a frame secured to the spiral and adapted to lie normally againstthe door, a block secured to the door-frame and having an inclined faceadapted to engage the first-mentioned frame to raise it, and a spring atthe other end of said frame to return it to its normal position whenreleased by the inclined block, substantially as set forth.

4:. The combination, witha door, of a flyfrightener pivotally connectedtherewith, said fly-frightener being composed of an open frame having aseries of loops thereon, and

screening material secured to said loops, substantially as set forth.

5. The combination, with a door, of a flyfrightener pivotally connectedthereto, said fly-frightener beingcomposed of a Wire frame having anupperportion and alower portion,

loops projecting from bothportions, andscreening material secured tosaid loops, substantially as set forth.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

JOHN BOS-lVOR'lll.

\Vitnesses:

CORODON Cnossnrr, FRANK G. Roor.

